package com.hm.ruiji.config;

import com.hm.ruiji.common.JacksonObjectMapper;
import lombok.extern.slf4j.Slf4j;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;

import java.util.List;

@Slf4j
@Configuration
public class WebMvcConfig extends WebMvcConfigurationSupport {

    /**
     * 设置静态资源映射
     * @param registry
     */
    @Override
    protected void addResourceHandlers(ResourceHandlerRegistry registry) {

        log.info("静态资源映射······");
        registry.addResourceHandler("/backend/**").addResourceLocations("classpath:/backend/");
        registry.addResourceHandler("/front/**").addResourceLocations("classpath:/front/");

    }

    @Override
    protected void extendMessageConverters(List<HttpMessageConverter<?>> converters) {

        log.info("拓展消息转换器···");

//        创建消息转换器对象
        MappingJackson2HttpMessageConverter converter = new MappingJackson2HttpMessageConverter();

//        设置消息转换器，底层使用jackson将java转换为json
        converter.setObjectMapper(new JacksonObjectMapper());

//        将上面的消息转换器对象追加到MVC框架的转化器容器
        converters.add(0,converter);

        super.extendMessageConverters(converters);
    }
}
